When a person consumes two goods (A and B), that person's utility is maximized when the budget is allocated such that: Select one: a. the ratio of total utility of A to the price of A equals the ratio of the marginal utility of B to the price of A. b. the ratio of the marginal utility of A to the price of A equals the ratio of the marginal utility of B to the price of B. the marginal utility of A times the price of A equals the marginal utility of B times the price of B d. the marginal utility of A equals the marginal utility of B